def save_book(book):
element = Book(title=book['title'],
subtitle=book['subtitle'],
description=book['description'],
previewLink=book['previewLink'],
imagen=book['imagen'],
ISBN=book['ISBN'])
element.save()
for author in book['authors']:
item = Author.objects.filter(name=author)
print(len(item))
if len(item) < 1:
item = Author(name=author)
item.save()
else:
item = item.first()
element.ref_author.add(item)
for category in book['categories']:
item = Category.objects.filter(name=category)
if len(item) < 1:
item = Category(name=category)
item.save()
else:
item = item.first()
element.ref_category.add(item)
return element
